platinum group flotation

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

The South African platinum industry has advanced into an era of predominantly mining and processing Upper Group Two (UG-2) ore to extract Platinum Group Metals (PGMs). Flotation concentrates derived from processing UG-2 ore are typically characterized by high chrome contents (>3 wt.%) which are not amenable to …

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) are contained which include sulphides, arsenides, tellurides, and ferroalloys among others, while at the same time ensuring the optimal depression of gangue minerals. In order to …

Platinum Group Mineral variability in terms of speciation and grain size is expected in Platreef ore (Carelse, et al., 2020). These variables should be considered to fully understand the flotation behaviour of the PGM species.

ABSTRACT The unique physical and chemical properties of platinum group elements are making them indispensable in many modern industrial applications. Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these …

This chapter describes the production of concentrates containing the platinum-group metals (PGMs). South Africa is the largest primary producer of PGMs followed by Russia. South African ores ...

Considering the average content of 1.5 g of platinum, 1.3–1.4 g of palladium, and 0.15 g of rhodium per kilogram of catalytic converter, the potential recycling of catalytic converters from these retired vehicles could yield an estimated 75 kg of platinum, 70 kg of palladium, and 7.5 kg of rhodium.

This study investigates the flotation kinetics of individual platinum-group elements (PGEs) and gold, namely Pt, Pd, and 2E+Au (i.e., Pt+Pd+Au), in the context of Platreef ore flotation.

Download Citation | On Oct 1, 2023, Borbor A.K.K. Gibson and others published The valorisation of platinum group metals from flotation tailings: A review of challenges and …

In the flotation of platinum group minerals (PGMs) occurring in the Platreef ore body, it is often assumed that the interactions between thiol collectors and tellurides of Pt and Pd are similar to ...

The Kell Process has been developed for extraction of platinum group metals (PGM) and base metals from sulfide flotation concentrates. The process has been successfully tested on several …

Synopsis The Kell Process has been developed for the extraction of platinum group metals (PGMs)and base metals from sulphide flotation concentrates. The process has been successfully tested on several different sulphide flotation concentrates, including those from the UG2 chromitite horizon and the Platreef mafic/ultramafic layer. It has been …

DOI: 10.1016/S1003-6326(19)65017-X Corpus ID: 199170840; Oxygen pressure leaching–flotation joint process for Jinbaoshan platinum group minerals @article{Rao2019OxygenPL, title={Oxygen pressure leaching–flotation joint process for Jinbaoshan platinum group minerals}, author={Shuai Rao and Zhiqiang Liu and Xian …

Flotation and enhanced gravity separation techniques used in some of the major platinum group metal producing plants for recovery of the platinum group of elements are also highlighted and ...

Certain South African platinum-group element (PGE) ores contain abundant phyllosilicate minerals which result in ultrafine coatings on valuable minerals, increase pulp viscosity, and dilute the grade through the recovery of talc composites. The highlighted problems usually lead to low recoveries and grades within the flotation process.

An investigation into the effects of UG2 Ore variability on froth flotation. N. V. Ramlall. Environmental Science, Engineering. 2014. South Africa is the world's largest producer of platinum group elements (PGEs). Mining takes place in the Bushveld Complex, and recent statistics, (Mudd, 2010), showed that the UG2 reef is the main…. Expand.

The Geological Occurrence, Mineralogy, and Processing by Flotation of Platinum Group Minerals (PGMs) in South Africa and Russia. by. Cyril O'Connor. 1,* and. Tatiana Alexandrova. 2. 1. Department of …

Substantial price increases for platinum (2,4%), palladium (43,2%) and rhodium (187,2%) in 2020 resulted in an increase in PGM sales despite a drop in PGM production. A UG2 ore was subjected to laboratory scale flotation tests to evaluate elemental grades and recoveries of the individual elements in the production basket.

The present article critically discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the …

The Bushveld Complex of South Africa contains almost 90% of the world's reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and …

¶The behaviour of platinum-group elements (PGE) during milling and flotation of the UG-2 chromitite layer is still poorly understood. The PGE in the UG-2 chromitite occur primarily in discrete ...

In the flotation of platinum group minerals (PGMs) in South Africa, CuSO 4 is used as an activator. The Bushveld Complex mineralogy is such that PGMs are frequently closely associated with base metals such as chalcopyrite, pyrrhotite and pentlandite ( Schouwstra and Kinloch, 2000 ) and hence CuSO 4 is used as an activator …

Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and precious metals refinery. …

During flotation tests, most of the platinum-group mineral grains that remained associated with gangue reported to the flotation tailings, and those associated with liberated base-metal sulphides ...

The uniqueness of Platinum-Group Elements (PGE) deposits and their formation dictates the development of the treatment process and the reagent regime for different ore types. There is however little data published on the flotation of PGE-bearing minerals due to its highly confidential nature ( Bulatovic, 2003 ).

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

Abstract. Platinum Group Metals (PGMs) play a significant role in the manufacturing of catalysts, super alloys, electronics, space materials, biomedical equipments, jewellery, etc. due to their excellent electrical and thermal conductivity as well as chemical resistivity. The rising demand of PGMs in industrial applications and their …

DOI: 10.1016/j.mineng.2023.108216 Corpus ID: 259765305; The valorisation of platinum group metals from flotation tailings: A review of challenges and opportunities @article{Gibson2023TheVO, title={The valorisation of platinum group metals from flotation tailings: A review of challenges and opportunities}, author={Borbor A.K.K. …

In this work, a new technique to treat Pt–Pd sulfide flotation concentrates and spent auto-catalysts by pressure cyanidation is put forward, and the results of 5 kg-scale batch experiments in a 50 L autoclave are reported for process development. ... The content of platinum group metals (PGMs) in proterozoic platinum ores is about 1–10 …

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, …

Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these minerals with base metal sulfides, chromites, and silicates, fine grinding is necessitated.

However unexplainable flotation results in low grade sulphide ores are often attributed to galvanic interactions with little regard for how feasible such interactions are from a physical point of view. In platinum group mineral (PGM) bearing sulphide ores from the Bushveld complex, South Africa, the combined sulphide grade is typically less ...

Flotation of Platinum Group metals PGMs ores originated from an ore body along The Great Dyke in Zimbabwe. The Great Dyke holds the world's 2nd largest …

UG2 chromitite ore is a complex, highly disseminated platinum ore from the Bushveld Complex in South Africa, with typical platinum group metal (PGM) grain sizes below 15 μm. A detailed survey of global PGM resources in 2010 reported that 70.9% of the world's PGM resources are within the Bushveld Complex, of which UG2 ore contributes …

Flotation of Platinum Group Metal Ores. Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 Publisher Summary. This chapter discusses various aspects of PGM (platinum group metal) ores. In general, PGM ores are concentrates in the crust found in two different ways, by leaching the metal-rich lava …

These derivatives function as collectors in froth flotation enrichment of non-ferrous sulphide ores, including serving a special purpose in improving the recovery of platinum group elements, which ...

In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) …

Flotation and enhanced gravity separation techniques used in some of the major platinum group metal producing plants for recovery of the platinum group of elements are also highlighted and ...